add some ciphers numbers in comment.
add a helper module for ASN1
don't unpack signature. use the bytestring representation.
separate some helpers and add new one.
export getInteger16/putInteger16 to serialize Integer in opaque16.
rewrite SKX methods to use getInteger16 and applicative style.
move getSignatureHashAlgorithm
add putSignatureHashAlgorithm
add the DigitallySigned structure to the list.

the structure is compatible with older "digitally-signed" constructions
of tls 1.1 and older.
misc: remove spaces
marshall signature as digitally-signed
factor some code in client certificate verify message generation.
cleanup CertificateVerify signature data generation
abstract signature creation/verification
use the new digitallySigned structure for CertVerify.
comment the reason of the existence of hashUpdateSSL.
add HashSHA1 for DSS signature for < TLS12.
add a test DHE cipher.
add DHE-RSA ciphers and a suite.